Home / 37,100.21-51,200.78-20,961.92

Finding the Fourth Proportional to 37,100.21, 51,200.78 and 20,961.92

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Solution

The fourth proportional to 37,100.21, 51,200.78 and 20,961.92 is: 28,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,100.21 : 51,200.78 = 20,961.92 : x
  2. Step 2: Convert to fraction form
    37,100.21/51,200.78 = 20,961.92/x
  3. Step 3: Cross multiply
    37,100.21x = 51,200.78 × 20,961.92
  4. Step 4: Simplify right side
    37,100.21x = 1,073,266,677.49
  5. Step 5: Solve for x
    x = 1,073,266,677.49/37,100.21
  6. Step 6: Final answer
    x = 28,928.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.